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The earliest glass item from the Indus Valley civilization is a brown glass bead found at Harappa, dating to 1700 BCE. This makes it the earliest evidence of glass in South Asia. [3] [20] Glass discovered from later sites dating from 600 to 300 BCE displays common colors. [3]
The study found that the room temperature viscosity of this glass was roughly 10 24 Pa·s which is about 10 16 times less viscous than a previous estimate made in 1998, which focused on soda-lime silicate glass.
Following the atomic bombing of Hiroshima, it was discovered in 2016 that between 0.6% and 2.5% of sand on local beaches was fused glass spheres formed during the bombing. Like trinitite, the glass contains material from the local environment, including materials from buildings destroyed in the attack. The material has been called hiroshimaite ...
The structural theories of glass formation only consider the relative ease of glass formation. Materials which form glasses under a moderate cooling rate are called good glass formers, those that require a rapid cooling rate are called poor glass formers and those that require extreme cooling rates are referred to a non-glass formers.
The 300-plus-year-old glass onion bottles were discovered from the 1715 Treasure ... The thin-glass bottles were probably made in England, Ard added, as the Spanish did not make their own glass ...
An exoplanet where rain made of glass flies through the ... Scientists first discovered HD 189733b in 2005 and later identified the gas giant as a “hot Jupiter” — a planet that has a similar ...
Potash glass is a glass that uses potash or K 2 O as a flux in order to decrease the melting point of the glass and is the most common type of glass found in SE Asia. [ 22 ] Detailed compositional data recently summarised by (Lankton, & Dussubieux 2006) has uncovered several distinct and yet contemporaneous glass technologies across the Indian ...
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